Automatic water-feed device for steam-generators, oil-burners, &amp;c.



J. L. GROVES.

AUTOMATIC WATER FE ED DEVICE FOR STEAM GENERATORS, OIL BURNERS, Km,APPLICATION FILED NOV, I5. 1915.

1,239,267. I Patented Sept. 4, 191?.

INVENTOR.

fro/m5 y UNITED STATES PATENT onnicn.

JOSEPH L. GROVES, OF LOS ANGELES, CALIFORNIA.

AUTOMATIC WATER-FEED DEVICE FOR STEAM-GENERATORS, OIL-Z BURNERS, 8w.

Application filed November 15,1915.

To all whom it may concern Be it known that I, JOSEPH L. Gnovns, acitizen of the United States, residing in the city of Los Angeles,county ofLos Angeles, State of California, have invented a new anduseful Automatic Water-Feed Device for Steam-Generators, Oil-Burners,&c., of which the following is a specification.

This invention relates to an automatic liquid control valve.

An object of the invention resides in the provision of a device of thischaracter by means of which a constant level may be maintained in aliquid container.

A further object of the invention resides in so constructing the devicethat its action will be positive in stopping the flow of liquid into thecontainer.

Further to provide a feed water device especially applicable for use inautomatic steam-generator oil-burners of the water reservoir type. Beingdesigned, as it is, to be attached to the exterior of the liquidcontainer, all its movable parts are kept cool by the in-flow of theliquid, and consequently are not subject to the accumulation of scale asare the devices designed for application to the interior of heatedcontainers.

With these and other objects in view, such as will appear as mydescription progresses, my invention comprises the combination andarrangement of parts as set forth in and falling within the scope of theappended claims.

In the drawings Figure 1 is a longitudinal sectional view; Fig. 2 is aside elevation view of my vice;

Fig. 3 is an end view showing connection of float arm; and

Fig. 4 is a cross section view showing threaded stem.

Referring to the drawings wherein like parts are indicated by likecharacters throughout the several views:

My device consists of a body portion made of three sections detachablysecured together. One of the end sections D is provided with threadsonone end by means of which the section may be secured to the container Lso that the float will extend within the same. On the other end of thissection D is a hollow threaded shank with which a second section isdetachably engaged which section is provided with a chamber G in theside adjacent the section D and another Specification of Letters Patent.

Patentedsept. 4, 1917.

Serial No. 61,708. I

chamber in the side remote from the section D. To the second section acap section Z is detachably engaged and has a reduced internallythreaded neck for the reception of a liquid supply pipe N. Extendingthrough the second section is a port P which establishes communicationbetween the two chambers of the second section. The cap piece Z inclosesa filter screen F for preventing foreign matter entering the port P.Extending through the section D is a port E which establishescommunication between the chamber C and the container L.

In order that the flow of the liquid into the chamber C and through theport E may be automatically controlled, I have extended a valve stem Sthrough the section D, which valve stem is in screw threaded engagementwith the said section so that when rotated it will be movedlongitudinally of the section D. Formed on the inner end of the valvestem S is a valve head V which is located in the chamber C and isadapted to close the adjacent end of the port P. The opposite endof thevalve stem is adapted to extend.

into the container and has an arm'A adjustably mounted thereon which armis held in place by a set screw Y and is provided on its end with afloat G. This arm A extends at right angles to the valve stem S.

l/Vhen the device is attached to a container as shown in Fig. 1 and thewater level is below a predetermined point, the valve head V will be inspaced relation to the adjacent end of the port P and the liquid willflow through the pipe N, through the port P and through the port E intothe liquid container.

When the level of the liquid within the container reaches a' certainheight the valve head V will close the port P and stop the flow ofliquid into the container. It will be obvious that as the liquid levelrises the float G will be raised gradually and the valve stem S rotatedwhich action will force the valve head toward the port P until it closesthe same as previously described. As the water is used from thecontainer and the level drops the stem S will be rotated in the oppositedirection and the port P opened. By making the arm A adjustable theamount of movement of the valve stem to close the port P may be variedand consequently the water level in the container varied.

From the foregoing description it will be seen that I have provided anautomatic valve designed to be attached to the exterior of a liquidcontainer for controlling the liquid level in the container which valveis so constructed that it will not readily get out of order and which isprovided with a rotatable plunger for closing the inlet port whichplunger is operated by means of a float.

W'hile I have illustrated and described a particular embodiment of myinvention it has merely been for the sake of convenience and I do notwish to be limited to that particular embodiment as it is obvious thatnu merous changes may be made in the details of construction withoutdeparting from the spirit of the invention or without exceeding thescope of the claims.

hat I claim is 1. A valve of the type described consisting of a bodyhaving helical grooves in the wall of the valve-stem opening and achannel parallel to the valve-stem opening, a valve seat spaced from thevalve-stem opening within the body, and a stem turnably mounted in thevalve-stem opening engaging with the valve seat.

2. An automatic water feed device for the liquid-container in steamgenerators, oil burners and similar places consisting of a body havingmeans thereon to engage with the liquid container, the said body havingalso helical grooves in the wall of the valvestem opening and a channelcommunicating with the inside of the container, a valve seat formed inthe bodycrosswise to the valve stem opening spaced from the valve-stemopening forming a chamber between the valve-stem opening and the seat,the said channel communicating with the chamber and the inside of thecontainer, a supply connection formed on the end of the body beyond thevalve seat, and a stem turnably mounted in the valve-stem openingengaging with the valve seat between the supply connection and thechannel.

3. In a valve of the type described a body having one end constructed tofit engagingly on a liquid container and the other end provided with asupply connection, a bore being provided through the body leading intothe liquid container, a valve seat formed on the end of the body nearthe supply connection spaced from the bore thereby forming a chamberbetween the bore and the valve seat, the said bore having helicalgrooves, and a channel within the body sidewise from the borecommunicating with the chamber and the inside of the liquid container. I

i. In a valve of the type described a body secured to a liquid containerprojecting off the container, the body having a supply con nection atthe farther end, a valve seat formed near the supply end crosswise tothe body, helical grooves in the wall of the valvestem opening throughthe body leading into the liquid container, a float-operated stemturnably mounted in the valve-stem. opening engaging with the valve seatand having means to engage with the helical grooves in the valve-stemopening, and a channel communicating with the inside of theliquidcontainer and the inside of the body when the stem engages withthe valve-seat, the channel forming the communication between the insideof the liquid container and the supply connection when the stem is indisengaged position off the valve seat.

JOSEPH L. GROVES.

Copiesof this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

